451655473890 has 32 divisors (see below), whose sum is σ = 1084534629696. Its totient is φ = 120379071680.

The previous prime is 451655473873. The next prime is 451655473921. The reversal of 451655473890 is 98374556154.

It is a self number, because there is not a number n which added to its sum of digits gives 451655473890.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3840357 + ... + 3956216.

It is an arithmetic number, because the mean of its divisors is an integer number (33891707178).

Almost surely, 2^451655473890 is an apocalyptic number.

451655473890 is an abundant number, since it is smaller than the sum of its proper divisors (632879155806).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

451655473890 is a wasteful number, since it uses less digits than its factorization.

451655473890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7798514.

The product of its (nonzero) digits is 18144000, while the sum is 57.

The spelling of 451655473890 in words is "four hundred fifty-one billion, six hundred fifty-five million, four hundred seventy-three thousand, eight hundred ninety".